TEXAS · WELLS · MATAGORDA COUNTY · API 42-321-00088 · DISTRICT 03
Ohio-Sun Unit #21J
Matagorda County · Markham N.-Bay City N (Betts) field · Temp Abandoned · Vertical
Ohio-Sun Unit #21J (API 42-321-00088) is a well in Matagorda County operated by Goldking Minerals Mgmt L.L.C., completed October 7, 1999 and listed as temp abandoned on the RRC schedule, shut in December 1, 1999.
The RRC has issued one drilling permit, issued November 7, 1990, permitted to 8,520 ft.
It was permitted by Marathon Oil Company and has since transferred to Goldking Minerals Mgmt L.L.C. on the wellbore schedule.
Completion filings report 3 formation tops, including Miocene (undifferentiated), Anahuac, Frio.
Its 3 leases have reported 130K barrels of oil and 630K mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 26 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Marathon Oil Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 10, 2026
- Permits on file
- 1
- Phone
- (713) 228-5464
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Goldking Minerals Mgmt L.L.C. |
| Production reports | Allegiant Resources, LLCthrough Apr 2026 |
| Latest permit | Marathon Oil CompanyNov 7, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,520
- total depth, ft
- 1
- permits on file
- Nov 7, 1990
- last permit issued
- Oct 7, 1999
- completed
- 130K
- cumulative oil, bbl
- 630K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 7, 1999
- Shut in
- Dec 1, 1999
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 3 leases this well is completed on; they carry 26 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ohio-Sun Unit O-3-2999 | Markham N.-Bay City,n (McDonald) | Allegiant Resources, LLC | 13 | 69.8K | 107K | Jan 1993 – Apr 2026 |
| Ohio-Sun Unit O-3-12601 | Markham N.-Bay City, N (Betts) | Allegiant Resources, LLC | 12 | 58.3K | 116K | Jan 1993 – Jun 2022 |
| Ohio-Sun Unit G-3-149758 | Markham N.-Bay City, N (Betts) | Allegiant Resources, LLC | 1 | 1.97K | 408K | Apr 1994 – Nov 1999 |
Oil, barrels lease total
Last 12 months 6,044 · prior 12 8,738(-31%)
Gas, mcf lease total
Last 12 months 10,920 · prior 12 13,027(-16%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil CompanyJan 1993 → Nov 2002
- 2Comstock Oil & Gas, Inc.Dec 2002 → Oct 2004
- 3Comstock Oil & Gas, LPNov 2004 → Aug 2008
- 4Premier Natural Resources, LLCNov 2009 → Sep 2010
- 5Allegiant Resources, LLCMar 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 380766-99 | Recompletion | Marathon Oil Company | Nov 7, 1990 | Nov 7, 1990 | — | 8,520 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 7, 1999 | Ohio-Sun Unit G-3-149758 | Markham N.-Bay City N (Betts) | Goldking Minerals Mgmt L.L.C. | Temp Abandoned · shut in Dec 1, 1999 | 8,520 |
| Nov 26, 1990 | Ohio-Sun Unit O-3-12601 | Markham N.-Bay City N (Betts) | Goldking Minerals Mgmt L.L.C. | Not on Schedule | — |
| May 22, 1968 | Ohio-Sun Unit O-3-2999 | Markham N.-Bay City N (McDonald) | Goldking Minerals Mgmt L.L.C. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 63 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Miocene (undifferentiated)MIOCENE | 2,500 | -2,437 |
| Anahuac | 5,500 | -5,437 |
| Frio | 6,500 | -6,437 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,790 | 7,793 | Perforated |
| 8,184 | 8,191 | Perforated |
| 8,197 | 8,204 | Perforated |
| 8,220 | 8,228 | Perforated |
| 8,379 | 8,387 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,044 | 15 | 1,150 S |
| 7 | 8,507 | 9.625 | 1,000 S |
| 7 | 8,507 | 9.875 | 1,000 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 18, 2000 | Dec 8, 1999 | — |
| 00 | Aug 25, 1999 | Jul 29, 1999 | — |
| 00 | Jul 18, 1994 | May 5, 1997 | — |
| 00 | Jun 30, 1994 | — | — |
| 00 | Jan 17, 1991 | Dec 17, 1990 | Yes |
| 00 | Dec 21, 1990 | — | — |
| 00 | Jan 12, 1984 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-321-00088 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-321-00088 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/32100088, documented in the API reference.